How to get exponent?

[EliteRinciks]

Hello!

To retrieve darkorbit packets though a proxy, i need to find the exponent(n) from this equation:

c = b^n mod m;

I have c, b and m. The only unknown is n.
b and m are primes.

Any ideas?

[V.I.R.U.S.]

calculate factorial...

1, 10, 100, 1000, 10000, 100000, 1000000, ... years

[black.ripper]

don't really sure what you mean by "mod". if it's module, then it can be found.

b^n=\frac{c}{\mod m}

and as you know b,c,m, that can be calculated. give a random example for them and I'll try to help.

[EliteRinciks]

What do you mean with frac? Yes, its a module.